At long last - Merc 666!

[Aeroliner]

Hi Tim,
It really is looking great. One note though if you run you machinery backwards it puts the chips back and fills unwanted holes and cuts. I know I have tried it often with great results.

Alan.

[Tim Kurcz]

Hi Tim,
It really is looking great. One note though if you run you machinery backwards it puts the chips back and fills unwanted holes and cuts. I know I have tried it often with great results.

Alan.

Thanks Alan,

Hmmm, always wondered what that "reverse" switch on the mill was for. Had I known that years ago, many hours and $$$ would have been saved!

From the forward gear; throat extensions are now compete. I can see the mockup coming this afternoon, after a few more pounds of chips are swept....

Tim

[Tim Kurcz]

Pounding in some shop hours paid off this weekend. Finishing touches were applied to the reed plate and carb adapters. Intake system fitting is coming along nicel, but the shop is trashed, time for some cleanup.

Tim

PS for Sam: Spent half an hour removing 3 ounces from on the adapters. Will use aluminum reed cages and take unneeded weight from the exhaust system - notably the filler block - when the time comes. There isn't much more to cut. The goal is to simply makn gobs of power to offset conversion weight.

[Tim Kurcz]

OK everybody, feast your eyes on this: All front end machine and some hand work is complete, carb butterflies reversed, and carbs fitted. Yet to go is finish hand work and particle blasting, cleaning, and the bonding process.

Following that, the filler block and stacks must be built. Then comes porting, bore & hone, cranktrain prep, and final fitting, cleaning, and assembly. And oh yeah, still need to mate the tower to clamps and stub the driveshaft, fit a water tube, etc.



Will post a few detail pics later today. Meanwhile, enjoy!

Tim

[Aeroliner]

Tim,
Progress is really moving forward. At the rate your going it will be running by the weekend and on the water the following. Now the fun starts putting the systems on the engine. Really looks good. Have you done any port work yet? We will have to work on the 6 cylinder outing for next year. It would be great if we could get 8 to 10 on the water.

Alan

[Powerabout]

Whats the lowdown on reeds not in line with the carb?
Cant measure the difference?
widens the torque band?
Cheers

[BJuby]

Just wanted to add that this project is amazing. What great work you do, and I am certainly jealous of your access to all the tools, not to mention your know-how. Is this going to be a padded block? Can't wait to see the next step!

[Tim Kurcz]

Whats the lowdown on reeds not in line with the carb?
Cant measure the difference?
widens the torque band?
Cheers

Hey Powerabout,

Reed gages themselves are installed in-line to provide the tightest package relative to the crankcase using existing architectural features. As a result, there is insufficient room to put Tillotson KA or OMC 1-bbl float carbs in-line:They must be splayed for clearance. It's not perfect, but breathes way better than the original Merc reed cage system.

Does this answer your question?

Tim

[Tim Kurcz]

Just wanted to add that this project is amazing. What great work you do, and I am certainly jealous of your access to all the tools, not to mention your know-how. Is this going to be a padded block? Can't wait to see the next step!

Thanks for your compliments - this is truly a fearsome looking engine. Heck, it might even run good as it looks! No need to be jealous - just find yourself a machine shop and get creative. To answer your question: The block will run stock compression: At 66 cubic inches it's not legal for Mod, so there's no need to crush it. Deadline for completion is October 15, just in time for Mark Suter's October 20 AOMCI show in Byron Michigan. My 13' Ropp hydro "Midnight Star" will be rigged with the completed 666 and displayed there for all to see.

Tim

[Tim Kurcz]

Here are port and starboard images of the 666, plus a front view of the brothers. Enjoy!

Tim